#include "String.h"
int main()
{
    String s;
    InitString(&s);
    char a[] = "abcdefgh";
    StrAssign(&s, a);
    printf("%s\n", s.array_);
    String tmp;
    InitString(&tmp);
    char b[] = "aaab";
    StrAssign(&tmp, b);
    printf("%s\n", tmp.array_);
    String ret;
    InitString(&ret);
    Concat(&s, &tmp, &ret);
    printf("%s\n", ret.array_);

    return 0;
}